outer and inner leakage of gear oil pump seal

Gear oil pump internal parts wear will cause internal leakage.

 

(1) Internal leakage of gear meshing surface wear

(2) gear end face and end cover sealing surface wear

(3) the gear work by the action of pressure oil, gear tip close to the oil pump shell, wear the low pressure cavity part of the pump body

(4) Another kind of wear is the circumferential wear of the working face in the shell

 

The outer leakage is the sealing ring between the end cover and the pump body is damaged.

Failure of the spindle seal can also result in leakage.

 

The volumetric efficiency of the gear pump with internal leakage decreases, and the output power of the oil pump is much lower than the input power.

The loss is all converted into heat energy, so it will cause the pump to overheat.

Leakage of gear oil pump, resulting in the loss of media, environmental damage, dirty work site, working pressure is too low.